Display screen or portion thereof with a graphical user interface



A portion of the disclosure of this patent document contains materialwhich a claim for copyright is made. The copyright owner has noobjection to the facsimile reproduction by anyone of the patent documentor the patent disclosure, as it appears in the US Patent and TrademarkOffice patent file or records, but reserves all other copyrightswhatsoever.

FIGURE is a front view of a display screen or portion thereof with agraphical user interface.

The outer broken line showing the display screen or portion thereofforms no part of the claimed design. The inner broken lines showingelements of the graphical user interface form no part of the claimeddesign.

CLAIM The ornamental design for a display screen or portion thereof witha graphical user interface, as shown and described.